#!/usr/bin/env zsh

source .utils

TAG_COUNT=5
MINOR_VERSION="v1."

print_usage() {
  orange "kind-list-images - List latest images for use with Kind nodes"
  echo " "
  underline "Usage:"
  echo "kind-list-images [minor-version]"
  echo " "
  echo " "
  underline "Options:"
  echo "-h, --help            show this help text"
  echo "-n, --last-n-minors   return the last n minor versions (default: ${TAG_COUNT})"
}


while test $# -gt 0; do
  case "$1" in
    -n|--last-n-minors)
      shift
      TAG_COUNT=$1
      shift
      ;;
    -h|--help)
      print_usage
      exit 0
      ;;
    *)
      MINOR_VERSION=$1
      shift
      ;;
  esac
done


TAGS=( $(crane ls kindest/node | sort | grep 'v1.' | grep -vE 'alpha|beta' | grep ${MINOR_VERSION}) )

declare -A latestMinor

for TAG in "${TAGS[@]}"; do
  MINOR="${TAG%.*}"
  latestMinor[$MINOR]=$TAG
done

RETURN_TAGS=( $(echo $latestMinor | tr ' ' '\n' | sort -r | head -n ${TAG_COUNT}) )

for TAG in "${RETURN_TAGS[@]}"; do
  echo " - kindest/node:$(blue $TAG)@$(crane digest kindest/node:$TAG)"
done